Buckle.



W. S. GRAHAM.

BUCKLE.

APYLLUMION rILBnI SEPT. 21, 1910.

Patented Apr.18,1911.

TTU all whom z't may concern.'

v holding the WILLIAM STUART GRAHAM, or BRIDGE?? BROTHERS C0., OF BRIDGEPORT, GONNE NECTICUTMASSIGNOR To WARNER CUT; A eoRroRATIoN or coNNECTIcU'r.

BUCKLE.

Specification of'Letters Patent.

,y Patented Apr. 18, 191i..

Application filed September 21,1910. Serial No. 583,101.

Be it known that I, IVILLIAM S. GRAHAM, a citizen ofthe United States, and a resident of Bridgeport, Fairfield county, Connecticut, have .invented certain new and useful Improvements in Buckles, of which the following is a specification accompanied by drawlngs.

" This invention relates to improvements in buckles, but more particularly to the type known as rustless back buckles.

The objects of the invention are to improve upon the construction of such buckles and render them more efficient and certain in operation, and provide means for securely webbing and preventing the lever plate from becoming accidentally opened. To these ends the .invention consists of a buckle embodying the features of construction and combinations 'of elements substantially claimed in this specification and shown in one of its preferred embodiments in the accompanying drawings, in which* Figure 1 is a front elevation of a buckle in open position; Fig. 2 is a similar view with the webbing partially threaded throu h the buckle; Fig. 3 is a front elevation of t e buckle and webbing with the buckle closed;

Fie. 4 is a side elevation of Fig. 3; Fig. 5 is a ront elevation of a modification of the buckle with the buckle open, and Fig. 6 is a further modification showing the frame made of .sheet metal. 'Y

Referring to the drawings, A represents the lever plate or front of the buckle, preferably provided with the longitudinal-slot B near its outer edge. The back or frame C is pivotally connected to the lever A and in this instance the edge D of the lever is rolled over the back bar E of the frame C.

` The frame C may consist either of wire bent into the required shape or it may be stamped out of metal, if desired.

In the drawings I have shown the back or frame C constructed of wire, by way of illustration. The wire is preferably bent inwardly at each side to form the loops F which referably extend .1nwardly to substantia 1y the central -portion of the frame to form a central web -supporting portion.. The ends G of the frame to form the loops H and are bent inwardly preferably provided with said ends G are ther press the as hereinafter fully described andthe forwardly extending points or teeth-J. One end K of the webbing` is threaded from rear to front over the loops F and back of the ends G of the frame and suitably sccured to the main bodyportion ol the webbing. The running length L of the webbing .is first passed through the slot B in the lever A from front to rear, as shown in Figs. 3 and 4, and then threaded through the buckle over the end K and between said end and the lever A. When the buckle is closed by turning down the lever/A, the running length L is pressed against the points or projections F and the strain or downward pull upon the loop I of the webbing. tends to furrunning length against the teeth J. The downward pull upon the loop P also'maintains the lever -A in closed position, owing to thefact thatV the running length L passes first through the lever.

In the modification shown in Fig. 5, the ends G of the frame C are bent close against the loops F, so that the end K of the webbing may be clamped between the loops F and the ends G ofthe frame, thus obviating the necessity of otherwise securing the end K to the body portion of the webbing.

It will be seen that in accordance with this invention the end K of the webbing is threaded through the back or frame C iustead of over the top of the back, and the teeth J are on the front of the back or frame C and project forwardly and are normally uncovered. This combination of parts eonstructed as described is designed for eiliciency and has been found to operate satisfactorily and well.

In Fig. 6, E E', represent piutles adapted to be pivoted in the edge D of the lever. In this modification, which is designed to bc stam ed from flat metal, bar F is substitutedp for loops F, F, and the lower edge is provided with serrations J J', in place of teeth J as shown inthe other forms. The manner of threading the webbing is that he fetofore described.

I claim and desire to obtain by Letters Patent the following:

1. A buckle comprising a slotted lever and a back or frame having an upper bar to which the level' is pivotally connected, said back comprising a piece of metal, the ends of which are bent inwardly from the ends of said upper bar andthen outwardly to form loops, and then bent inwardly to form ends passes over said loops from the rear yto front and then passes from' front to rear back of t said pointed ends, the running length of the webbing being threaded through the'slotin the lever` from front to rear and then passing bet\'veen the end ofthe webbing andthe leverz whereby when the lever is closed the runnlng` length is pressed against said points or progeotons on the ends of the back or trame,

2. rlhe Combination of a buckle compris- Ving aslotted lever and aback or treme havlng an upper member to wlnch the lever is pvotelly connected, a central member adapted to form a longitudinal bearing andV so located with reference vto the upper noem` ber as to leeve a space between it 4and said l upper member and a lower member provided with forwardly projecting teeth or projections, and a' webbmg having one end passing over said central bearing and back ot said teeth or projections, the free end of the webbngrbeing threaded from front to rear through the slot in the lever and ug throughv the space between the upper an central members ofthe frame, whereby said tree end is pressed against the teeth or projectons when the lever is closed.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

l AVVlLLIAll STUART GRAHAM.

Witnesses:

W. Pelzer ALLEN, LUGIE'N. 'L 'VARNER. 

